mastodon/app/services/block_service.rb

# frozen_string_literal: true

class BlockService < BaseService
  include Payloadable

  def call(account, target_account)
    return if account.id == target_account.id

    UnfollowService.new.call(account, target_account) if account.following?(target_account)
    UnfollowService.new.call(target_account, account) if target_account.following?(account)
    RejectFollowService.new.call(target_account, account) if target_account.requested?(account)

    NotificationPermission.where(account: account, from_account: target_account).destroy_all

    block = account.block!(target_account)

    BlockWorker.perform_async(account.id, target_account.id)
    create_notification(block) if !target_account.local? && target_account.activitypub?
    block
  end

  private

  def create_notification(block)
    ActivityPub::DeliveryWorker.perform_async(build_json(block), block.account_id, block.target_account.inbox_url)
  end

  def build_json(block)
    Oj.dump(serialize_payload(block, ActivityPub::BlockSerializer))
  end
end